Guide for stamp-mills



(No Model.) I I J. D. PEREGRINE.

GUIDE FOR STAMP MILLS. No. 373,092,. Patented Nov. 15, 1887.

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ATENT GUIDE FOR STAIVIP=IVI|LLS.

SPECIPICATIONforming part of Letters Patent No. 373,092, dated November15, 1887.

A Application filed April 16, 1887. Serial No. 235,032. (No model.)

To ctZZ whom it may concern:

Be it known that I, J OHN D. PEREGRINE, a citizen of the United States,residing at Gentral City, in the county of Gil pin and State ofColorado, have invented certain new and useful Improvements in Guidesfor Stamp-Mills, of which the following is a full, clear, and exactdescription, reference being hadto the accompanying drawings, formingpart of this specification, in which- Figure 1 represents a partialsectional view showing the interior construction of the bushstamp-stemand showing the tappet at its greatest elevation and engaged by theliftingcam. Fig.2 is a cross-sectional view of the same on the line X Xof Fig. 1.

My invention relates to certain improvements in stamp-mills; and itconsists in the peculiar construction and combination of devices, whichI shall hereinafter fully describe and claim.

To enable others skilled in the art to which my invention appertains tomake and use the same, I will now describe its construction and indicatethe manner in which the same is carried out.

In the said drawings, A indicates a guide timber or plate, such as isusually placed in the rear of battery-posts to receive and guideSuitably mounted Within this guide are one or more bushings, 0,preferably formed in two sections and held together and to the guidetimber or plate by any wel1-known means such as the 3-shaped bar orstaple D shown in Fig. 2. However, when a device as just mentioned isemployed, one of the sections of the bushing will be provided with agrooved portion, a, to receive the staple and prevent the same slipping,and thereby causing a dis placement of the sections constituting thebushing. The bottom plate of the bushing has an opening, I), for thestamp-stem,while that portion of said bushing'above the bottom plate isprovided with a chamber or bore, O, having a diameter considerablylarger than the diameter of the stamp-stem which passes through it.

.same to a minimum.

Within the chamber 0 are loosely placed a number of anti-friction metal,glass, or rubber balls, D, which surround the stem in two or more tiers,therebyforming a compact bearing for the stem and reducing the frictionon the By thus locating the spheres the stamp-stem is permitted to havea free and unimpeded vertical movement, and

at the same time the usual rotary movement of the same is expedited.

The stem is provided with a tappet, E, which is engaged by alifting-cam, F, to elevate the stem in the usual manner; but in thepresent case the lower face of the tappet is corrugated and thebearing-face of the cam provided with projections (1, adapted to engagethe corrugated face of the tappet, whereby the same and its attachedstem are rotated during the movements of said cam.

By reason of the above construction I am enabled to provide an effectiveguide for the stamp-stem, and at the same time the friction incident tothe continuous movement of the same is reduced to a minimum,while thedouble row of balls will serve to steady the upper portion of said stem.

Having thus described my invention,what I claim as new, and desire tosecure by Letters Patent, is-- l. The combination, with avertically-moving stamp-stem and its guidingtimbers, of a bushing havingchamber or bore, and a bottom plate through which said stem passes, anda double row of balls in said chamber surrounding the stamp-stem,substantially as described.

2. The stamp-stem and the two-part bushing, having a chamber throughwhich said stem passes, in combination with the balls within .saidchamber and surrounding said stem, and

means for holding the sections of the bushing together, substantially asherein described.

3. The stamp-stem and the tappet thereon having corrugations on itslower face, in combination with a lifting-cam having projectionsengaging the corrugations to rotate the stem, substantially asdescribed.

JOHN D. PEREGRINE.

Witnesses:

T. WALTER FOWLER, XV. H. PATTERSON.

